<or pudwack> Similar to a jerkoff, but far more lame. One who is wack, a dick, and or pansy ass; more so than most people anyone knows. A fool, a person who should know better but stil doesn't somehow. The absolute essence wackin off embodies most actions of this person.
You Pudwack! Jerret is such a pudwack, he couldn't get laid in a morgue, with a hundred dollar bill hanging out of his fly.
Someone who enjoys whacking their "pud"...or in other words masturbating
. You could also call a nerd or a jerk a 'pud-whack'
God, John, you are such a pud-whack. (It fits either category of definition!)